That has to be tough, the whole dog years thing that dogs face. You're a puppy one day, a toddler the next week, an adult in six months, and applying for Social Security when you're seven or eight.
The dog food I buy my dog, Iams, has a "seniors" variety for dogs over seven. And my dog's actually going to be 11 this summer, so she ought to be on life support. Except she actually acts fairly youthful for such an old age.
We still call her a puppy.